Sanitary mask



FIG. 1 is perspective view of a sanitary mask, according to my design.

FIG. 2 is front view thereof.

FIG. 3 is back view thereof.

FIG. 4 is left view thereof.

FIG. 5 is right view thereof.

FIG. 6 is top view thereof.

FIG. 7 is bottom view thereof; and,

FIG. 8 is an in-use view thereof.

The broken lines in the drawings are for illustrative purposes only and form no part of the claimed design. 

CLAIM I claim the ornamental design for a sanitary mask, as shown and described. 